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When should we implement Serializable interface?
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Implement the Serializable interface when you want to be able to convert an instance of a class into a series of bytes or when you think that a Serializable object might reference an instance of your class.
Serializable classes are useful when you want to persist instances of them or send ...
How to force use of overflow menu on devices with menu button
...tually prevented by design. According to the Compatibility Section of the Android Design Guide,
"...the action overflow is available from the menu hardware key. The resulting actions popup... is displayed at the bottom of the screen."
You'll note in the screenshots, phones with a physical menu b...
How to get the index of a maximum element in a numpy array along one axis
...e gives you results in the form that you asked for. Alternatively, you can convert to a list of x,y coordinates by:
x_y_coords = zip(indices[0], indices[1])
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Getting exact error type in from DbValidationException
...uation where I'm initializing my model in DatabaseInitializer() for EF 4.1 and get this annoying error "Validation failed for one or more entities. See 'EntityValidationErrors' property for more details." So, I go to this EntityValidationErrors and there is a field {System.Data.Entity.Validation....
“implements Runnable” vs “extends Thread” in Java
...purer" way to go.
In practical terms, it means you can implement Runnable and extend from another class as well.
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What is getattr() exactly and how do I use it?
...is that I still can't grasp the idea of its usage. The only thing I understand about getattr() is that getattr(li, "pop") is the same as calling li.pop .
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.NET JIT potential error?
...code gives different output when running the release inside Visual Studio, and running the release outside Visual Studio. I'm using Visual Studio 2008 and targeting .NET 3.5. I've also tried .NET 3.5 SP1.
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What is an SDL renderer?
...re is an efficient, driver-specific representation of pixel data.
You can convert an SDL_Surface* to SDL_Texture using
SDL_Texture* SDL_CreateTextureFromSurface(SDL_Renderer* renderer,
SDL_Surface* surface)
After this, the SDL_Surface should be freed u...
best way to add license section to iOS settings bundle
...settings bundle.
There's also projects under way to allow this data to be converted and displayed within the app instead:
https://github.com/CocoaPods/cocoapods-install-metadata
https://github.com/cocoapods/CPDAcknowledgements
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Python Pandas merge only certain columns
...ed answer: list('xab') takes each element (letter) of the string 'xab' and converts it to a list element so list('xab') returns ['x', 'a', 'b']. That works if each column has a single letter as a name. In your case I think you need to do df1.merge(df2['Unique_External_Users'], *other_arguments). ......